Mabbett & Associates, Inc.

Mabbett & Associates, Inc., a Service-Disabled Veteran-Owned Small Business headquartered in Stoneham, Massachusetts, delivers environmental remediation, hazardous waste management, industrial hygiene, and architectural engineering services to federal agencies as a prime contractor on 858 of 865 recent awards, competing predominantly under SDVOSB set-asides and full-and-open procurements across the GSA Multiple Award Schedule, EPA regional IDIQs, and single-award VA and Department of Interior environmental contracts.

The vendor's federal footprint is heavily concentrated in environmental, health and safety, and facility management services. Concrete capability work spans legionella testing and water quality compliance at VA medical centers (multiple VISN contracts generating hundreds of delivery orders for specialized facility testing); hazardous waste disposal and remediation (a $7.4 million VA single-award IDIQ with VISN 1 for Northeast region medical center waste management); NEPA and historic preservation analysis supporting VA facility development (a $300 million Department of Interior contract on behalf of VA Office of Construction and Facilities Management covering 13 functional areas including environmental contamination control and endangered species management through March 2031); and EPA RCRA and environmental compliance support (three single-award EPA regional IDIQs totaling $35.8 million, awarded in February 2026 to EPA Regions 2, 4, and 9 under Total Small Business set-asides for technical assistance services through February 2031). Representative prime work includes a $2.33 million Army Northeast Region definitive contract for groundwater pump-and-treatment system operation and semi-annual monitoring at Natick, Massachusetts (awarded February 26, 2026, running through February 25, 2031); a $1.119 million National Park Service CERCLA non-time-critical removal action at the Pinhook Bog Debris Site in Indiana Dunes National Park (awarded September 24, 2025, completing June 16, 2027); and a $613 thousand Army Corps of Engineers delivery order for Remedial Investigation, Feasibility Study, and Proposed Plan work at the former Dow Air Force Base in Bangor, Maine (awarded August 6, 2025, completing August 31, 2026).

Customer concentration is pronounced. The top five agencies by award count account for 68% of recent awards; by potential dollar value, the top five account for 71%. The Department of Veterans Affairs dominates across multiple service networks: VISN 1 alone placed 287 awards ($60.8 million combined potential value), while the VA Office of Construction and Facilities Management placed 35 awards anchoring $616.3 million in combined potential value, reflecting the $300 million Department of Interior environmental contract described above. The General Services Administration Public Buildings Service National Capital Region issued 179 awards ($27.6 million). The Army Corps of Engineers New England District placed 36 awards ($122.6 million). The Environmental Protection Agency Region 1 issued 47 awards ($10.8 million). This concentration reflects Mabbett's strong position on VA facility compliance and environmental remediation work across the Northeast, with secondary depth in EPA regional environmental support and Army Corps infrastructure projects.

Mabbett holds three major parent vehicle types. The GSA Multiple Award Schedule vehicle, awarded May 19, 2026, carries an $82 million ceiling through May 18, 2031, with seven labor categories ranging from $60.58 to $236.11 per hour (administrative assistant through program manager, no security clearances required). Delivery orders under this schedule have included the $1,057,579.86 RCRA/EPCRA compliance award to the Northeast Area (August 1, 2026, completing July 31, 2031) and the $546,094.60 BARC CERCLA program order (April 1, 2024, completing March 31, 2026). Three EPA regional environmental IDIQs, totaling $35.8 million and awarded February 2, 2026, provide RCRA Enforcement Permitting Assistance services to EPA Regions 2, 4, and 9 through February 1, 2031, all set-aside for Total Small Business. The $300 million Department of Interior contract (awarded September 23, 2025, through March 17, 2031) is set-aside for SDVOSB and covers 13 functional areas of VA facility environmental support. The $7.4 million VA VISN 1 hazardous waste disposal IDIQ (awarded April 22, 2023, through April 21, 2027) is a single-award SDVOSB set-aside generating dozens of annual delivery orders across Northeast VA medical centers. A $4.44 million National Cemetery Administration IDIQ (awarded October 3, 2024, through September 30, 2029) provides architectural, environmental, and industrial hygiene support services. A $15 million Army Corps of Engineers environmental planning and consulting IDIQ (awarded June 1, 2023, through May 31, 2028) covers Northeastern United States projects under a Total Small Business set-aside.

Mabbett's award trajectory shows modest fluctuation: 65 awards in 2022, 71 in 2023, 65 in 2024, 54 in 2025, and 69 in 2026 (through October 2026). Combined potential value across all 865 awards is $1.21 billion, with $128.7 million (11%) obligated as of the data snapshot. Seventy-three awards face ultimate completion within the next twenty-four months, totaling $17.6 million in combined potential value—a moderate recompete cliff reflecting strong ongoing task-order placement against established IDIQs.

SCI reporting (federal service contracts above $150,000 threshold) shows Mabbett invoiced $11.8 million across 59 prime records in FY2022–FY2025: $1.7 million in FY2022 (21.3 FTEs), $1.6 million in FY2023 (4.6 FTEs), $3.9 million in FY2024 (10.8 FTEs), and $4.6 million in FY2025 (10.6 FTEs). FTE trajectory grew from 4.9 in FY2022 to 13.1 in FY2025, signaling scaling of delivery operations. Median government-paid hourly rates on SCI-reportable prime contracts ran $174.71 per hour, with rates ranging from the 10th percentile near zero (likely fixed-price deliverables with irregular invoicing) to the 90th percentile at $273.56 per hour, consistent with the GSA Schedule's senior professional and management labor pricing. Across prime SCI contracts, subcontractors accounted for an average 33% of total contractor hours, with 58 named subcontractors engaged, indicating Mabbett operates a blended delivery model: it retains core staff for project management, compliance oversight, and specialized environmental assessment work while subcontracting lower-skilled or temporary labor for site fieldwork, sampling, and routine monitoring.

Mabbett operates primarily as a prime contractor (99% of awards), with only 7 sub-awards visible in the source, primarily to major systems integrators (Leidos on FUSRAP hazardous waste lab services; Stantec Consulting on aircraft maintenance hangar design; AECOM on DHS consolidation construction management). The vendor does not appear as a significant strategic subcontractor across the federal landscape; its posture is priming, not subbing to larger firms.

Set-aside activity is mixed: roughly 40% of recent awards carry explicit SDVOSB sole-source or set-aside designations, while the remainder compete full-and-open or under Total Small Business set-asides (which do not restrict to veteran-owned status but reflect small-business eligibility). Mabbett's SDVOSB status is consistently cited in award descriptions, and the vendor holds several SDVOSB sole-source and set-aside vehicles, particularly with the VA. However, it also competes successfully in unrestricted procurements, as evidenced by EPA regional awards and Army Corps task orders without set-aside markings.

NAICS concentration spans Environmental Consulting Services (627 awards), Hazardous Waste Collection (98), Engineering Services (82), with PSC codes dominated by industrial hygienics support (135 awards) and environmental services work. The portfolio reflects a specialist vendor deeply embedded in federal environmental remediation, facility compliance, and waste management—not a generalist IT or logistics provider. Mabbett's competitive advantage rests on SDVOSB status, established VA and EPA relationships, proven execution on complex environmental site assessments and remediation projects, and a lean subcontracting model that allows flexible scaling to match task-order volume while maintaining margin discipline.

Environmental, health and safety consulting and engineering services in site assessment/remediation, pollution control, wastewater/groundwater treatment, industrial hygiene, hazardous waste management, and training.